life expectancy of control arms and king pins/ball joints of a TJ` - JeepForum.com
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Unread 09-16-2013, 03:14 PM   #1
Submariner
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life expectancy of control arms and king pins/ball joints of a TJ`

So I am running about 152k on my Rubi right now.

What is the life expectancy of the control arm bushings and ball joints of a TJ?

I got a good discount at Oriely's for a few more weeks and was wondering if I should buy them now while I have the discount going.

So what is the verdict? buy em now or wait until they fail?

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Unread 09-16-2013, 04:19 PM   #2
wwch99tj
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I've got nearly 250k on my 99's originals...
Everything's still in good shape....

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Unread 09-16-2013, 04:32 PM   #3
SlackJaw
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My 04 has 125k. The ball joints still test good. The control arm booshings were shot when I bought it with 106k on it. No idea whether my TJ was garaged for any of its previous life.

I am generally proponent that the factory CA bushings are good for 100k/ten years, but certainly have seen cases to the contrary.

With regards to your bjs and oreillys....the moogs are $58 each...I understand spicers can be had for 1/2 that from ECGS. Just fyi.
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Unread 09-16-2013, 04:35 PM   #4
BriansCJ
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I'd just get spicer BJs from ebay when the time comes.
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Unread 09-16-2013, 09:54 PM   #5
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The replacement parts you get from O'Reilly most certainly won't be of OEM quality.....yes, even the Moog.
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Unread 09-17-2013, 03:05 AM   #6
MetalMountainGoat
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My ball joints are fine at 112k, but my front control arm bushings are shot. My rear control arms were replaced with currie's johnny joint arms long ago so they are fine. I will be replacing the fronts with currie arms very soon.
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Unread 09-17-2013, 03:16 AM   #7
5-90
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Quote:
Originally Posted by Submariner View Post
So I am running about 152k on my Rubi right now.

What is the life expectancy of the control arm bushings and ball joints of a TJ?

I got a good discount at Oriely's for a few more weeks and was wondering if I should buy them now while I have the discount going.

So what is the verdict? buy em now or wait until they fail?
1) You do know that king pins and ball joints is two different aminals, right?
2) Theoretically, they're lifetime parts. In practise, they last until they fail. (How long is that? Your guess is as good as mine - too many variables.)
2a) EPDM bushings seem to be about 150kmiles or so, give or take. Again, plenty of variables.
3) You can keep spares on hand if you think you need to, but do you really need to? (Most of the "spare parts" I tend to keep around are just maintenance items - tune-up parts, brake friction, and the like.)
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Unread 09-17-2013, 06:32 AM   #8
tj120
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by moog. my 01 tj has 85000 on it and the ball joints have been changed at least 3 times since i bought it in 05 with 43000 on it. the last time i changed them i went with moog and they are still great after about 5 years of my abusive driving and rock crawling. i learned this lesson the hard way with wheel bearings (i use timken now) and clutches (centerforce now). so whatever you do, dont buy questionable parts no matter what the discount because you will be changing them next year again.
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Unread 09-17-2013, 07:58 AM   #9
owen3544
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The factory ones should be good for 150k-200k miles. Moog is the cheapest parts you will want to replace them with but timken and spicer are what I would go with.
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